ICD-10-CM 2027
ICD-10 code for mechanical lagophthalmos
From the official ICD-10-CM alphabetic index entry “Lagophthalmos (eyelid) (nervous) › mechanical”. Page updated September 29, 2026.
About coding mechanical lagophthalmos
The ICD-10-CM code for mechanical lagophthalmos is H02.229 (Mechanical lagophthalmos unspecified eye, unspecified eyelid). The official index lists 9 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on H02.229.
Within H02.22, choose H02.229 (unspecified eye, unspecified eyelid) only when documentation doesn't support a more specific option: right upper eyelid (H02.221), right lower eyelid (H02.222), right eye, unspecified eyelid (H02.223), left upper eyelid (H02.224), left lower eyelid (H02.225), left eye, unspecified eyelid (H02.226), right eye, upper and lower eyelids (H02.22A), left eye, upper and lower eyelids (H02.22B) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 124 (Other Disorders of the Eye with MCC or Thrombolytic Agent, relative weight 1.2471) and DRG 125 (Other Disorders of the Eye without MCC, relative weight 0.7702), in MDC 02 (Diseases and Disorders of the Eye), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific mechanical lagophthalmos codes (official index)
- bilateral, upper and lower eyelids H02.22C — Mechanical lagophthalmos, bilateral, upper and lower eyelids
- left H02.226 — Mechanical lagophthalmos left eye, unspecified eyelid
- lower H02.225 — Mechanical lagophthalmos left lower eyelid
- upper H02.224 — Mechanical lagophthalmos left upper eyelid
- upper and lower eyelids H02.22B — Mechanical lagophthalmos left eye, upper and lower eyelids
- right H02.223 — Mechanical lagophthalmos right eye, unspecified eyelid
- lower H02.222 — Mechanical lagophthalmos right lower eyelid
- upper H02.221 — Mechanical lagophthalmos right upper eyelid
- upper and lower eyelids H02.22A — Mechanical lagophthalmos right eye, upper and lower eyelids
Common questions about mechanical lagophthalmos ICD-10 codes
What is the ICD-10 code for mechanical lagophthalmos?
- H02.229 — Mechanical lagophthalmos unspecified eye, unspecified eyelid. More specific codes apply when the documentation supports them: H02.22C, H02.226, H02.225, H02.224 and others below.
What is the ICD-10 code for left mechanical lagophthalmos?
- H02.226 — Mechanical lagophthalmos left eye, unspecified eyelid.
What is the ICD-10 code for right mechanical lagophthalmos?
- H02.223 — Mechanical lagophthalmos right eye, unspecified eyelid.
Is H02.229 billable?
- Yes. H02.229 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can H02.229 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict H02.229 as a principal diagnosis.
Is H02.229 a CC or MCC?
- No. H02.229 is neither a CC nor an MCC under MS-DRG v44.0.